Würth 1952 008 114 Traducción Del Manual De Instrucciones De Servicio Original página 30

Check the ring nut clearance on the pin
• Keep still the ring nut with CH. 30 and rotate the threaded pin
M17x1 counterclockwise and check how many turns the pin can
rotate until it stops (fig. 6).
If it does not rotate, lock the pin and ring nut together and
proceed with the removal of the injector otherwise count the
number of turns (counterclockwise) of the pin and add a shim
every turn.
Shims insertion and clearance removal
• According to the turns detected, insert 1 or 2 shims on the
protruding stem of the adapter and tighten the ring nut up to the
threading limit stop (fig. 7).
• Rotate the threaded bolt M17x1 clockwise (with wrench) until it
stops and tighten in turn the ring nut with CH. 30.
The purpose of this procedure is necessary to ensure that ring
nut and the pin are in contact with each other without clearance
so as to ensure a uniform grip on both threads of the injector
during the extraction.
Options for fastening the structure to the head:
• Option 1:
Support with 4 feet, with lower unit + crosshead.
This option is used when there are no central screws on the head
in line with the injectors.
The structure is supported on the head is made for example on
the screws that fasten the covers of the of twin camshaft (see fig.
18 - 19).
• Option 2:
Support with 3 feet, with crosshead.
This option must be used when the fixing screws of the head are
in line with the injectors. When possible, use this option because
the structure is stiffer and faster to position.
Assembly Option 1:
Lower support group
• Assemble the 2 support feet 1952 003 513 (with adjustable
height) to the lower support group 1952 003 512 (fig. 8).
Lower support with 4 feet and crosshead
• Assemble the lower support group 1952 003 512 with the
sliding groups 1952 003 517 to the crosshead 1952 003 511
(fig. 9).
• Choose the support feet depending on the type of engine (the
30
6
7
8
9